Let an evil slug parasite from outer space take away your freedom by crawling inside your ear, wrap itself around your brain, making you totally incapable of controlling your own body and screaming for help. And lose your freedom, ability to move your own body in any way(the slug does that for you), privacy... And no, it won't listen to you when you want to do something else than your yeerk wants. It has total control over your body so why would it listen to you? And yeah, that's what it's called. Yeerk.

In other words,Would you rather die or become controlled by a yeerk? Yay Animorphs reference xD